10-Night Cruise on Oceania SirenaAdriatic to Istanbul Venice to Istanbul - Weather

The Oceania Sirena sails a 10-night Adriatic to Istanbul Venice to Istanbul itinerary with Oceania Cruises, departing Venice, Italy on May 5, 2027. It's a classic Mediterranean cruise. Travelers sailing in May can generally expect mild, changeable weather that can turn cool and wet. Ports of call include Venice, Italy, Koper, Slovenia, Rijeka, Croatia, with 7 more along the way. Use the day-by-day forecast below to plan what to pack for each stop.

1. Day 1 — Wednesday, May 5, 2027 — Venice, Italy

   Venice, Italy is a scheduled port of call on day 1 of the 10-night Adriatic to Istanbul Venice to Istanbul cruise on Oceania Sirena. Expected weather: partially cloudy with highs near 64°F.

2. Day 2 — Thursday, May 6, 2027 — Koper, Slovenia

   Koper, Slovenia is a scheduled port of call on day 2 of the 10-night Adriatic to Istanbul Venice to Istanbul cruise on Oceania Sirena. Expected weather: partially cloudy with highs near 69°F.

3. Day 3 — Friday, May 7, 2027 — Rijeka, Croatia

   Rijeka, Croatia is a scheduled port of call on day 3 of the 10-night Adriatic to Istanbul Venice to Istanbul cruise on Oceania Sirena. Expected weather: partially cloudy with highs near 66°F.

4. Day 4 — Saturday, May 8, 2027 — Dubrovnik, Croatia

   Dubrovnik, Croatia is a scheduled port of call on day 4 of the 10-night Adriatic to Istanbul Venice to Istanbul cruise on Oceania Sirena. Expected weather: partially cloudy with highs near 68°F.

5. Day 5 — Sunday, May 9, 2027 — Sarande, Albania

   Sarande, Albania is a scheduled port of call on day 5 of the 10-night Adriatic to Istanbul Venice to Istanbul cruise on Oceania Sirena. Expected weather: partially cloudy with highs near 69°F.

6. Day 6 — Tuesday, May 11, 2027 — Iraklion, Greece

   Iraklion, Greece is a scheduled port of call on day 6 of the 10-night Adriatic to Istanbul Venice to Istanbul cruise on Oceania Sirena. Expected weather: partially cloudy with highs near 76°F.

7. Day 7 — Wednesday, May 12, 2027 — Piraeus, Greece

   Piraeus, Greece is a scheduled port of call on day 7 of the 10-night Adriatic to Istanbul Venice to Istanbul cruise on Oceania Sirena. Expected weather: partially cloudy with highs near 79°F.

8. Day 8 — Thursday, May 13, 2027 — Syros, Greece

   Syros, Greece is a scheduled port of call on day 8 of the 10-night Adriatic to Istanbul Venice to Istanbul cruise on Oceania Sirena. Expected weather: partially cloudy with highs near 65°F.

9. Day 9 — Friday, May 14, 2027 — Bozcaada

   Bozcaada is a scheduled port of call on day 9 of the 10-night Adriatic to Istanbul Venice to Istanbul cruise on Oceania Sirena. Expected weather: partially cloudy with highs near 68°F.

10. Day 10 — Saturday, May 15, 2027 — Istanbul, Turkey

    Istanbul, Turkey is a scheduled port of call on day 10 of the 10-night Adriatic to Istanbul Venice to Istanbul cruise on Oceania Sirena. Expected weather: partially cloudy with highs near 69°F.